/*
 * Copyright [2013-2021], Alibaba Group Holding Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.optimizer.core.planner.rule.smp;

import com.alibaba.polardbx.optimizer.core.planner.rule.LogicalWindowToHashWindowRule;
import com.alibaba.polardbx.optimizer.core.rel.HashWindow;
import org.apache.calcite.plan.RelOptRuleCall;
import org.apache.calcite.rel.RelCollations;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.logical.LogicalWindow;

public class SMPLogicalWindowToHashWindowRule extends LogicalWindowToHashWindowRule {

    public static final LogicalWindowToHashWindowRule INSTANCE = new SMPLogicalWindowToHashWindowRule("INSTANCE");

    public SMPLogicalWindowToHashWindowRule(String desc) {
        super("SMP_" + desc);
    }

    @Override
    public void createHashWindow(
        RelOptRuleCall call,
        LogicalWindow window,
        RelNode newInput) {

        HashWindow newWindow =
            HashWindow.create(
                window.getTraitSet().replace(outConvention).replace(RelCollations.EMPTY),
                newInput,
                window.getConstants(),
                window.groups,
                window.getRowType());
        call.transformTo(newWindow);
    }
}
